You can't do a router with this one... There's no RJ45.
There's no HDMI, so you can't do a media box...
You can interact with a smartphone, with bluetooth or wifi...But what for?
Is a smartphone connected on the net can do the same thing with a traditional server? Yes.
More I think, more "cons" I find....
- Security... in 99% of cases, the physical access to the server is the first security.... With portability.... 0% for this kind of security.
- Is the Bluetooth or wifi is more secure than the traditional LAN connection? No !